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- Title
Cefmetazole for extended‐spectrum β‐lactamase‐producing Enterobacteriaceae in pediatric pyelonephritis.
- Authors
Araki, Kotaro; Fukuoka, Kahoru; Horikoshi, Yuho; Higuchi, Hiroshi; Aizawa, Yuta
- Abstract
Background: Pyelonephritis caused by extended‐spectrum β‐lactamase (ESBL)‐producing Enterobacteriaceae is an urgent problem in pediatrics. Although carbapenem is the standard therapy for infections caused by ESBL‐producing Enterobacteriaceae, some cephamycins, including cefmetazole, are stable against hydrolysis by ESBL. There are few reports, however, on the use of cefmetazole in children. The aim of this study was to evaluate the therapeutic effect of cefmetazole in pediatric pyelonephritis caused by ESBL‐producing Enterobacteriaceae. Methods: Children with pyelonephritis caused by ESBL‐producing Enterobacteriaceae were enrolled between April 2010 and November 2016 at Tokyo Metropolitan Children's Medical Center. Presence of ESBL was tested for using the disk diffusion method. Medical records were reviewed for a past history of bacterial infection. The outcomes were clinical cure rate at 4 weeks and the duration of therapy in the cefmetazole and non‐cefmetazole groups. Results: Fifty‐five patients met the criteria for pyelonephritis caused by ESBL‐producing Enterobacteriaceae. The most common causative organisms were Escherichia coli (n = 51; 92.7%), Klebsiella pneumoniae (n = 3; 5.5%), and K. oxytoca (n = 1; 1.8%). Thirty‐six and 19 patients were treated with cefmetazole and with other antibiotics as definitive therapy, respectively. There was no difference in the clinical cure rate (86.1% vs 89.5%; P = 0.72) or duration of therapy (median, 7.0 vs 7.0 days; P = 0.73) between the cefmetazole and non‐cefmetazole groups. Conclusions: Cefmetazole was not inferior to the other antibiotics in the treatment of pyelonephritis caused by ESBL‐producing Enterobacteriaceae in children. Cefmetazole is a valuable therapeutic alternative to carbapenems for treating pyelonephritis caused by ESBL‐producing Enterobacteriaceae.
- Subjects
CHINA; CARBAPENEMS; CEPHALOSPORINS; CHILDREN'S hospitals; ENTEROBACTERIACEAE; MICROBIAL sensitivity tests; PYELONEPHRITIS; TREATMENT effectiveness; ENTEROBACTERIACEAE diseases; DESCRIPTIVE statistics; PHARMACODYNAMICS; CHILDREN; THERAPEUTICS
- Publication
Pediatrics International, 2019, Vol 61, Issue 6, p572
- ISSN
1328-8067
- Publication type
Article
- DOI
10.1111/ped.13847